From f76b8590a1808ae27ce687b2ab5eedb3cd4b3149 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Fri, 25 Feb 2022 18:16:26 +0000
Subject: [PATCH] dtoverlays: Add overlay for Omnivision OV2311 image
 sensor

Adds an overlay for the OV2311 1600x1300 monochrome global
shutter image sensor.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
 arch/arm/boot/dts/overlays/Makefile           |  1 +
 arch/arm/boot/dts/overlays/README             | 15 +++
 arch/arm/boot/dts/overlays/ov2311-overlay.dts | 93 +++++++++++++++++++
 3 files changed, 109 insertions(+)
 create mode 100644 arch/arm/boot/dts/overlays/ov2311-overlay.dts

--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -139,6 +139,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	mmc.dtbo \
 	mpu6050.dtbo \
 	mz61581.dtbo \
+	ov2311.dtbo \
 	ov5647.dtbo \
 	ov7251.dtbo \
 	ov9281.dtbo \
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -2421,6 +2421,21 @@ Params: speed                   Display
         xohms                   Touchpanel sensitivity (X-plate resistance)
 
 
+Name:   ov2311
+Info:   Omnivision OV2311 camera module.
+        Uses Unicam 1, which is the standard camera connector on most Pi
+        variants.
+Load:   dtoverlay=ov2311,<param>=<val>
+Params: rotation                Mounting rotation of the camera sensor (0 or
+                                180, default 0)
+        orientation             Sensor orientation (0 = front, 1 = rear,
+                                2 = external, default external)
+        media-controller        Configure use of Media Controller API for
+                                configuring the sensor (default on)
+        cam0                    Adopt the default configuration for CAM0 on a
+                                Compute Module (CSI0, i2c_vc, and cam0_reg).
+
+
 Name:   ov5647
 Info:   Omnivision OV5647 camera module.
         Uses Unicam 1, which is the standard camera connector on most Pi
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/ov2311-overlay.dts
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Definitions for OV2311 camera module on VC I2C bus
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+/{
+	compatible = "brcm,bcm2835";
+
+	i2c_frag: fragment@0 {
+		target = <&i2c_csi_dsi>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			ov2311: ov2311@60 {
+				compatible = "ovti,ov2311";
+				reg = <0x60>;
+				status = "okay";
+
+				clocks = <&cam1_clk>;
+				clock-names = "xvclk";
+
+				avdd-supply = <&cam1_reg>;
+				dovdd-supply = <&cam_dummy_reg>;
+				dvdd-supply = <&cam_dummy_reg>;
+
+				rotation = <0>;
+				orientation = <2>;
+
+				port {
+					ov2311_0: endpoint {
+						remote-endpoint = <&csi1_ep>;
+						clock-lanes = <0>;
+						data-lanes = <1 2>;
+						link-frequencies =
+							/bits/ 64 <400000000>;
+					};
+				};
+			};
+		};
+	};
+
+	csi_frag: fragment@1 {
+		target = <&csi1>;
+		csi: __overlay__ {
+			status = "okay";
+			brcm,media-controller;
+
+			port {
+				csi1_ep: endpoint {
+					remote-endpoint = <&ov2311_0>;
+					data-lanes = <1 2>;
+				};
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&i2c0if>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	fragment@3 {
+		target = <&i2c0mux>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	clk_frag: fragment@4 {
+		target = <&cam1_clk>;
+		__overlay__ {
+			status = "okay";
+			clock-frequency = <24000000>;
+		};
+	};
+
+	__overrides__ {
+		rotation = <&ov2311>,"rotation:0";
+		orientation = <&ov2311>,"orientation:0";
+		media-controller = <&csi>,"brcm,media-controller?";
+		cam0 = <&i2c_frag>, "target:0=",<&i2c_vc>,
+		       <&csi_frag>, "target:0=",<&csi0>,
+		       <&clk_frag>, "target:0=",<&cam0_clk>,
+		       <&ov2311>, "clocks:0=",<&cam0_clk>,
+		       <&ov2311>, "avdd-supply:0=",<&cam0_reg>;
+	};
+};